/* === BASE RESET + TYPO === */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  -webkit-text-size-adjust: none;
  text-size-adjust: none;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav-height-desktop) + var(--space-4));
  transition: background-color var(--transition-interactive), color var(--transition-interactive);
}

body {
  min-height: 100dvh;
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: 1.6;
  overflow-x: hidden;
}

img, video, svg { display: block; max-width: 100%; height: auto; }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  text-wrap: balance;
  line-height: 1.12;
  letter-spacing: -0.015em;
  color: var(--color-text);
}

p, li { text-wrap: pretty; max-width: 72ch; }

a { color: inherit; text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 3px; }

input, button, textarea, select { font: inherit; color: inherit; }
button { cursor: pointer; background: none; border: none; }

::selection { background: var(--color-primary-highlight); color: var(--color-text); }

:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  html { scroll-behavior: auto; }
}

/* === LAYOUT UTILITIES === */

.container {
  max-width: var(--content-default);
  margin-inline: auto;
  padding-inline: clamp(var(--space-4), 5vw, var(--space-12));
}
.container--narrow { max-width: var(--content-narrow); margin-inline: auto; padding-inline: clamp(var(--space-4), 5vw, var(--space-8)); }
.container--wide   { max-width: var(--content-wide);   margin-inline: auto; padding-inline: clamp(var(--space-4), 5vw, var(--space-12)); }

section { padding-block: clamp(var(--space-12), 8vw, var(--space-24)); }

.bg-base    { background: var(--color-bg); }
.bg-surface { background: var(--color-surface-2); }
.bg-offset  { background: var(--color-surface-offset); }
.bg-accent  { background: var(--color-primary); color: var(--color-primary-contrast); }
.bg-dark    { background: #17150F; color: var(--color-text-inverse); }
[data-theme="dark"] .bg-dark { background: #0A0908; }

/* === TYPOGRAFIE === */

.eyebrow {
  display: inline-block;
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-primary-active);
  margin-bottom: var(--space-3);
}
[data-theme="dark"] .eyebrow { color: var(--color-primary); }

h1 { font-size: var(--text-3xl); margin-bottom: var(--space-6); }
h2 { font-size: var(--text-2xl); margin-bottom: var(--space-4); }
h3 { font-size: var(--text-lg); font-weight: 600; margin-bottom: var(--space-3); }

.lead {
  font-family: var(--font-body);
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  max-width: 60ch;
  margin-bottom: var(--space-8);
  line-height: 1.55;
  font-weight: 400;
}

/* === KNOPPEN === */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-8);
  border-radius: var(--radius-full);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  text-decoration: none;
  min-height: 48px;
  transition: background var(--transition-interactive), color var(--transition-interactive), box-shadow var(--transition-interactive), border-color var(--transition-interactive);
  white-space: nowrap;
  border: 2px solid transparent;
}
.btn:hover { text-decoration: none; }

.btn-primary {
  background: var(--color-primary);
  color: var(--color-primary-contrast);
}
.btn-primary:hover        { background: var(--color-primary-hover); box-shadow: var(--shadow-md); }
.btn-primary:focus-visible { outline: 2px solid var(--color-text); outline-offset: 3px; }
.btn-primary:active       { background: var(--color-primary-active); box-shadow: var(--shadow-sm); }
.btn-primary:disabled,
.btn-primary[aria-disabled="true"] {
  background: var(--color-text-faint);
  color: var(--color-surface-2);
  cursor: not-allowed;
  box-shadow: none;
}

.btn-outline {
  background: transparent;
  color: var(--color-text);
  border-color: var(--color-border);
}
.btn-outline:hover        { background: var(--color-surface-offset); border-color: var(--color-text-muted); }
.btn-outline:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 3px; }
.btn-outline:active       { background: var(--color-surface-offset); box-shadow: var(--shadow-sm); }

.btn-ghost {
  background: transparent;
  color: var(--color-text-muted);
}
.btn-ghost:hover          { color: var(--color-text); background: var(--color-surface-offset); }
.btn-ghost:focus-visible  { outline: 2px solid var(--color-primary); outline-offset: 3px; }
.btn-ghost:active         { background: var(--color-surface-offset); }

.btn-lg { min-height: 56px; padding-inline: var(--space-10); font-size: var(--text-base); }

/* === REVEAL === */

.reveal { opacity: 0; transform: translateY(12px); transition: opacity var(--transition-reveal), transform var(--transition-reveal); }
.reveal.is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
}

/* === SECTION STACK === */

.section-stack { display: flex; flex-direction: column; align-items: flex-start; }
.section-stack > .eyebrow    { margin-bottom: var(--space-3); }
.section-stack > h2          { margin-bottom: var(--space-4); }
.section-stack > .lead       { margin-bottom: var(--space-10); }
.section-stack > .stack-body { margin-bottom: var(--space-12); width: 100%; }
.section-stack > .stack-cta  { margin-top: 0; }
.section-stack.no-lead > h2  { margin-bottom: var(--space-8); }
.section-stack.intro-narrow > .eyebrow,
.section-stack.intro-narrow > h2,
.section-stack.intro-narrow > .lead { max-width: var(--content-narrow); }
.section-stack.center { align-items: center; text-align: center; margin-inline: auto; }
.section-stack.center > .lead { margin-inline: auto; }